Thread: PW4 Minimizing battery consumption
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Old 01-26-2020, 04:51 PM   #29
j.p.s
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Quote:
Originally Posted by Junket View Post
Referenced thread

The result, e.g. about 5% drain /month (PW4, deep sleep) implies zero processor activity as the discharge rate is what you would expect for a battery alone sitting on a shelf (2% per month self-discharge, plus 2 - 3% per month for the battery protection circuit).
So deep sleep renders airplane mode irrelevant if that is true. That means that periodical subscriptions would not download until user initiated wakeup. Also, if OTA updates are enabled, they would usually only happen when the reader is in use. Oh joy, get out the reader to occupy an unexpected brief wait, watch the UI freeze during the download then go into a glacial reboot.
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